Is Your Jewellery Actually Nickel-Free? How to Tell
“Hypoallergenic” has no regulated definition and does not guarantee nickel-free. Nickel is often used in the base alloy or as an undercoat beneath gold plating, where it is invisible. The only reliable check is asking the brand to state nickel-free explicitly for the base metal.
Why plating hides the problem
Nickel is commonly used as an intermediate layer between a base metal and its gold finish, because it improves adhesion and brightness. While the plating is intact, that nickel never touches skin. Once it wears through at a contact point, it does — which is why reactions often begin months after purchase rather than immediately.
Signals worth trusting
| Claim on a listing | How much to trust it |
|---|---|
| "Nickel-free 316L stainless steel" | Strong — names material and property |
| "Implant-grade titanium" | Strong — nickel-free by definition |
| "Hypoallergenic" | Weak — unregulated term |
| "Skin-friendly" or "safe metal" | Marketing language, not specification |
| No base metal stated | Assume nickel may be present |
Questions that get a real answer
- "What is the base metal, specifically?" — you want a grade, not an adjective.
- "Is there a nickel undercoat beneath the plating?" — the question most brands are never asked.
- "Is this nickel-free, or hypoallergenic?" — if the two are used interchangeably, treat the answer as unverified.
House of Zena states it plainly: nickel-free and lead-free 316L surgical-grade stainless steel across the full range, including studs and huggies. More on reactions in earrings for sensitive ears.
Frequently asked questions
Does gold plated jewellery contain nickel?
It can — in the base alloy or as an undercoat beneath the gold. Unless nickel-free is stated, assume it may be present.
Is hypoallergenic the same as nickel-free?
No. Hypoallergenic is an unregulated marketing term. Nickel-free is a specific material claim.
Can I test jewellery for nickel at home?
Nickel spot-test kits exist and are used by dermatologists. They are a reasonable check if you have a diagnosed allergy.